NL only keeper help

[stlcanowhupass]

8 team H2H custom league with 4 keepers. I have good problems as I am having a hard time deciding on who to keep this year.

I'm keeping;

Chase Utley
Ryan Braun
Tulowitski

Who should be my 4th?
McCann
Carpenter
Justin Upton
Adrian Gonzalez

Believe it or not, I came in second place with this team last year (lost it on the last day of a 2 week playoff).

[The Big Train]

Justin Upton or Adrian Gonzalez. I lean heavily towards Upton. Quite frankly, I would keep both of them at the expense of Tulo although I'm sure most will disagree.

[stlcanowhupass]

I was leaning toward Upton too. Gonzalez is great but all of the trade rumors about him going to the AL have me a little gun shy. The other guy I was seriously considering was Carpenter to anchor my rotation but Upton is hard to give up. The arguement for McCann is the position he plays, the next best being maybe Montero or Domut (?) (pirates)...you know who I'm talking about lol.

[jeffmerk]

I was leaning toward Upton too. Gonzalez is great but all of the trade rumors about him going to the AL have me a little gun shy. The other guy I was seriously considering was Carpenter to anchor my rotation but Upton is hard to give up. The arguement for McCann is the position he plays, the next best being maybe Montero or Domut (?) (pirates)...you know who I'm talking about lol.

Have R. Martin and G. Soto really fallen behind Montero and Doumit?

[Grounded Polo]

I'd keep J-Up and shop Tulo/AGon for a 1b in the Miggy, Howard, Prince, and Tex Tier.

[Whalewang]

I really like J Up here. That's a really nice core to go into the draft with.